Figure 1From: Maskless micro/nanofabrication on GaAs surface by friction-induced selective etchingSchematic illustration showing the friction-induced selective etching on GaAs surface. (a) A groove was formed on GaAs surface after scratching a diamond tip under a normal load of Fn. (b) A protrusive nanoline was created on GaAs surface after post-etching in H2SO4 aqueous solution.Back to article page